US2019064517A1PendingUtilityA1

Head Up Display Dynamic And Static Distortion Measurement And Specification Using Programmable And Automated XYZLDA Positioning System And Still/Video Camera

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Assignee: PANASONIC AUTOMOTIVE SYSTEMS CO AMERICA DIV PANASONIC CORP NORTH AMERICAPriority: Aug 31, 2017Filed: Aug 29, 2018Published: Feb 28, 2019
Est. expiryAug 31, 2037(~11.1 yrs left)· nominal 20-yr term from priority
Inventors:Gerald Anthony Tang-KongTom Burns
G02B 27/62G02B 27/0075G01M 11/02G02B 2027/0141G02B 5/30G02B 27/0101G01M 11/0257G01M 11/0207
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Claims

Abstract

A head up display testing arrangement includes an optical instrument detecting an optical quality of a light field produced by a head up display projector. A rotatable support device is attached to and supports the optical instrument. A three-dimensional positioning assembly is attached to and supports the tiltable support device. The three-dimensional positioning assembly includes an x-axis linear drive module, a y-axis linear drive module, and a z-axis linear drive module. Each one of the x-axis linear drive module, the y-axis linear drive module, and the z-axis linear drive module translates the tiltable support device in a direction orthogonal to directions in which other two of the x-axis linear drive module, the y-axis linear drive module, and the z-axis linear drive module translate the rotatable support device. A rollable cart is attached to and supports the three-dimensional positioning assembly.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A head up display testing arrangement, comprising:
 an optical instrument configured to detect an optical quality of a light field produced by a head up display projector;   a rotatable support device attached to and supporting the optical instrument;   a three-dimensional positioning assembly attached to and supporting the tiltable support device, the three-dimensional positioning assembly including:
 an x-axis linear drive module; 
 a y-axis linear drive module; and 
 a z-axis linear drive module, each one of the x-axis linear drive module, the y-axis linear drive module, and the z-axis linear drive module being configured to translate the rotatable support device in a direction orthogonal to directions in which other two of the x-axis linear drive module, the y-axis linear drive module, and the z-axis linear drive module are configured to translate the rotatable support device; 
   a rotary drive module to tilt the support; and   a rollable cart attached to and supporting the three-dimensional positioning assembly.   
     
     
         2 . The head up display testing arrangement of  claim 1  further comprising a body having a reflective surface configured to reflect the light field produced by the head up display projector. 
     
     
         3 . The head up display testing arrangement of  claim 1  wherein the optical instrument comprises at least one of a camera and photoradiometer. 
     
     
         4 . The head up display testing arrangement of  claim 1  wherein the detected optical quality of the light field comprises a brightness level. 
     
     
         5 . The head up display testing arrangement of  claim 1  wherein the detected optical quality of the light field comprises a brightness uniformity. 
     
     
         6 . The head up display testing arrangement of  claim 1  wherein the detected optical quality of the light field comprises a contrast ratio. 
     
     
         7 . The head up display testing arrangement of  claim 1  wherein the detected optical quality of the light field comprises a polarization level. 
     
     
         8 . The head up display testing arrangement of  claim 1  wherein the detected optical quality of the light field comprises static distortion. 
     
     
         9 . The head up display testing arrangement of  claim 1  wherein the detected optical quality of the light field comprises dynamic distortion. 
     
     
         10 . A head up display testing method, comprising:
 using an optical instrument to detect an optical quality of a light field produced by a head up display projector;   attaching a tiltable support device to the optical instrument such that the tiltable support device supports the optical instrument;   attaching a three-dimensional positioning assembly to the tiltable support device such that the three-dimensional positioning assembly supports the tiltable support device, the three-dimensional positioning assembly including:
 an x-axis linear drive module; 
 a y-axis linear drive module; and 
 a z-axis linear drive module; 
   using each one of the x-axis linear drive module, the y-axis linear drive module, and the z-axis linear drive module to translate the tiltable support device in a direction orthogonal to directions in which other two of the x-axis linear drive module, the y-axis linear drive module, and the z-axis linear drive module translate the tiltable support device;   tilting the tiltable support device by use of a rotary drive module; and   attaching a rollable cart to the three-dimensional positioning assembly such that the rollable cart supports the three-dimensional positioning assembly.   
     
     
         11 . The method of  claim 10  further comprising using a body having a reflective surface to reflect the light field produced by the head up display projector. 
     
     
         12 . The method of  claim 10  wherein the optical instrument comprises at least one of a camera and photoradiometer. 
     
     
         13 . The method of  claim 10  head up wherein the detected optical quality of the light field comprises a brightness level. 
     
     
         14 . The method of  claim 10  wherein the detected optical quality of the light field comprises a brightness uniformity. 
     
     
         15 . The method of  claim 10  wherein the detected optical quality of the light field comprises a contrast ratio. 
     
     
         16 . The method of  claim 10  wherein the detected optical quality of the light field comprises a polarization level. 
     
     
         17 . The method of  claim 10  wherein the detected optical quality of the light field comprises static distortion. 
     
     
         18 . The method of  claim 10  wherein the detected optical quality of the light field comprises dynamic distortion. 
     
     
         19 . A head up display testing arrangement, comprising:
 a head up display projector configured to project a light field;   a body having a reflective surface configured to reflect the light field;   an optical instrument configured to detect an optical quality of the reflected light field;   a rotatable support device attached to and supporting the optical instrument;   a three-dimensional positioning assembly attached to and supporting the tiltable support device, the three-dimensional positioning assembly being configured to position the rotatable support device at a plurality of selected positions in three-dimensional space; and   a rollable cart attached to and supporting the three-dimensional positioning assembly.   
     
     
         20 . The head up display testing arrangement of  claim 19  wherein the three-dimensional positioning assembly includes:
 an x-axis linear drive module; 
 a y-axis linear drive module; and 
 a z-axis linear drive module, each one of the x-axis linear drive module, the y-axis linear drive module, and the z-axis linear drive module being configured to translate the rotatable support device in a direction orthogonal to directions in which other two of the x-axis linear drive module, the y-axis linear drive module, and the z-axis linear drive module are configured to translate the rotatable support device. 
 
     
     
         21 . The head up display testing arrangement of  claim 19  wherein the optical instrument comprises at least one of a camera and photoradiometer. 
     
     
         22 . The head up display testing arrangement of  claim 19  wherein the detected optical quality of the light field comprises a brightness level. 
     
     
         23 . The head up display testing arrangement of  claim 19  wherein the detected optical quality of the light field comprises a brightness uniformity. 
     
     
         24 . The head up display testing arrangement of  claim 19  wherein the detected optical quality of the light field comprises a contrast ratio. 
     
     
         25 . The head up display testing arrangement of  claim 19  wherein the detected optical quality of the light field comprises a polarization level. 
     
     
         26 . The head up display testing arrangement of  claim 19  wherein the detected optical quality of the light field comprises static distortion. 
     
     
         27 . The head up display testing arrangement of  claim 19  wherein the detected optical quality of the light field comprises dynamic distortion.

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